Right now, the summer harvest is about to begin. It is a good time to rationally use straw and green manure. The following focuses on straw returning technology and green manure utilization methods. We are professional manufacturer of Body Bag. We focused on international export product development, production and sales. We have improved quality control processes of Body Bag to ensure each export qualified product. Body Bag Body Bag,Black Body Bag,Adult Body Bag,Patient Body Bag CAREABLE BIOTECHNOLOGY CO,. LTD , https://www.careablemask.com
The advantages of returning straw to crops are rich in organic matter and mineral nutrients. After returning to the field, they can fertilize and improve soils, save fertilizer, convert straw burning into straw, reduce dust pollution, and facilitate traffic.
The technical points of returning straw to the fields under the action of microorganisms, after rot and release nutrients, can only play a role in improving soil fertility and being absorbed and utilized by crops. Therefore, the key to straw returning technology is to create conditions for the biochemical reactions of microorganisms and ensure that seedling growth is not harmed. The technical points are: 1 crushed straw, timely pressure. The straw is cut into small pieces or crushed so that the moisture and the like are easily immersed in; the time for rolling is matched with the time of farming, and it is generally carried out after the harvest of the current season crop and before the sowing of the crop of the lower crop. The depth of overturning is not less than 20 cm; 2 with nitrogen and phosphorus fertilizers. The carbon and nitrogen ratio of straw is high, and the content of nitrogen and phosphorus is low. In order to meet the needs of microbial decomposition and seedling growth, generally 200-300 kg of dry straw are returned per mu, and about 5 kg of urea is added. 3 Soil moisture regulation. The soil moisture that is favorable for straw rot and seedling growth is about 20%. For the straw returned before the planting of the southern rice crop, the groundwater level should be reduced through shallow irrigation, timely drying, and dredging the three channels; For returning the straw to the field, it is necessary to improve the soil moisture content by means of appropriate deep plowing and pressure pouring and pouring water at the bottom.
There are three main reasons for the yellowing of summer maize seedlings after they return to the field: 1 The straw is not cut enough and the pressure and soil preparation quality are not high enough to make the seeds vacant, and insufficient water and nutrients can be obtained; 2 Fertilization is irrational, there is no additional nitrogen fertilizer, or the proportion of nitrogen fertilizer used in the compound fertilizer is relatively low; 3 soil moisture is insufficient, so that when the straw rot, the microorganisms and seedlings compete for water. It is recommended to look for the reasons above and take corresponding improvement measures.
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